<?php


class DefaultUserController extends Controller
{
    

    /**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
			array('allow',  // allow all users to perform 'index' and 'view' actions
				'actions'=>array('index','view'),
				'users'=>array('*'),
			),
			array('allow', // allow authenticated user to perform 'create' and 'update' actions
				'actions'=>array('create','update'),
				'users'=>array('@'),
			),
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('admin','delete'),
				'users'=>array('admin'),
			),
			array('deny',  // deny all users
				'users'=>array('*'),
			),
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
                $model           = $this->loadModel($id);
                $avatar          = $this->getAvatarLink($model->avatar);
                $avatarThumbnail = $this->getAvatarThumbnailLink($model->avatar);

		$this->render('view',array(
			'model'=>$model,
                        'avatar'=>$avatar,
                        'avatarThumbnail'=>$avatarThumbnail,
		));
	}

	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{           
		$model=new User;

		// Uncomment the following line if AJAX validation is needed
		 $this->performAjaxValidation($model);

		if(isset($_POST['User']))
		{
			$model->attributes = $_POST['User'];
                        $model->join_time  = time();
                        $model->password   = md5($model->password);
                        $model->avatar     = CUploadedFile::getInstance($model,'avatar');
                            if ($model->avatar != null){
                                $avatar_name = 'image_'.$model->id.'_'.time().'.'.$model->avatar->getExtensionName();
                                $model->avatar->saveAs(Yii::getPathOfAlias('webroot').User::S_IMAGES.$avatar_name);
                                $image = Yii::app()->image->load(Yii::getPathOfAlias('webroot').User::S_IMAGES.$avatar_name);
                                $image->resize(128,128, Image::HEIGHT);
                                $image->save(Yii::getPathOfAlias('webroot').User::S_THUMBNAIL.$avatar_name); // or $image->save('images/small.jpg');
                                $model->avatar = $avatar_name;
                            }
                            else {
                                $model->avatar = User::S_NOIMAGE;
                            }         
			if($model->save()) 
				$this->redirect(array('view','id'=>$model->id));
                        
		}

		$this->render('create',array(
			'model'=>$model,
		));
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		$model           = $this->loadModel($id);
                $avatar          = $this->getAvatarLink($model->avatar);
                $avatarThumbnail = $this->getAvatarThumbnailLink($model->avatar);
                $oldAvatar       = $model->avatar;
                
		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['User']))
		{
			$model->attributes = $_POST['User'];
                        $model->password   = md5($model->password);
                        $model->avatar     = CUploadedFile::getInstance($model,'avatar');
                            if ($model->avatar != null){
                                $avatar_name = 'image_'.$model->id.'_'.time().'.'.$model->avatar->getExtensionName();
                                $model->avatar->saveAs(Yii::getPathOfAlias('webroot').User::S_IMAGES.$avatar_name);
                                $image = Yii::app()->image->load(Yii::getPathOfAlias('webroot').User::S_IMAGES.$avatar_name);
                                $image->resize(128,128, Image::HEIGHT);
                                $image->save(Yii::getPathOfAlias('webroot').User::S_THUMBNAIL.$avatar_name); // or $image->save('images/small.jpg');
                                $model->avatar = $avatar_name;
                            }
                            else {
                                $model->avatar = $oldAvatar;
                            }
                        $model->modified_time = time();
			if($model->save())
				$this->redirect(array('view','id'=>$model->id));
		}

		$this->render('update',array(
			'model'=>$model,
                        'avatar'=>$avatar,
                        'avatarThumbnail'=>$avatarThumbnail,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		if(Yii::app()->request->isPostRequest)
		{
			// we only allow deletion via POST request
			$this->loadModel($id)->delete();
			// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
			if(!isset($_GET['ajax']))
				$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
		}
		else
			throw new CHttpException(400,'Invalid request. Please do not repeat this request again.');
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
		$test = new User;
                var_dump($test->checkUserExist('l2qnew@gmail.com'));

                $dataProvider=new CActiveDataProvider('User');
                $dataProvider->pagination->pageSize=3;
		$this->render('index',array(
			'dataProvider'=>$dataProvider,
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new User('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['User']))
			$model->attributes=$_GET['User'];

		$this->render('admin',array(
			'model'=>$model,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer the ID of the model to be loaded
	 */
	public function loadModel($id)
	{
		$model=User::model()->findByPk((int)$id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}
        
        /**
	 * Performs the AJAX validation.
	 * @param CModel the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='user-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
        /**
         *  Get Image link
         * @param string $avatar
         * @return string
         */
        static function getAvatarLink($avatar) {
                    $avatar_link = Yii::app()->request->baseUrl.User::S_IMAGES.$avatar;
                    return $avatar_link;                
        }
        /**
         * Get thumbnail of image
         * @param string $avatar
         * @return string or false
         */
        static  function getAvatarThumbnailLink($avatar) {
                $avatar_link = Yii::app()->request->baseUrl.User::S_THUMBNAIL.$avatar;
                return $avatar_link;
        }
       
}
